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/*
This file is part of GNUnet.
Copyright (C) 2023 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Tobias Frisch
* @file src/messenger/messenger_api_queue_messages.c
* @brief messenger api: client implementation of GNUnet MESSENGER service
*/
#include "messenger_api_queue_messages.h"
void
init_queue_messages (struct GNUNET_MESSENGER_QueueMessages *messages)
{
GNUNET_assert (messages);
messages->head = NULL;
messages->tail = NULL;
}
void
clear_queue_messages (struct GNUNET_MESSENGER_QueueMessages *messages)
{
GNUNET_assert (messages);
while (messages->head)
{
struct GNUNET_MESSENGER_QueueMessage *element = messages->head;
GNUNET_CONTAINER_DLL_remove (messages->head, messages->tail, element);
if (element->message)
destroy_message (element->message);
GNUNET_free (element);
}
messages->head = NULL;
messages->tail = NULL;
}
void
enqueue_to_messages (struct GNUNET_MESSENGER_QueueMessages *messages,
const struct GNUNET_IDENTITY_PrivateKey *sender,
const struct GNUNET_MESSENGER_Message *message)
{
GNUNET_assert ((messages) && (message));
struct GNUNET_MESSENGER_QueueMessage *element = GNUNET_new (struct GNUNET_MESSENGER_QueueMessage);
if (!element)
return;
element->message = copy_message (message);
if (sender)
GNUNET_memcpy (&(element->sender), sender, sizeof (element->sender));
if (!element->message)
{
GNUNET_free (element);
return;
}
GNUNET_CONTAINER_DLL_insert_tail (messages->head, messages->tail, element);
}
struct GNUNET_MESSENGER_Message*
dequeue_from_messages (struct GNUNET_MESSENGER_QueueMessages *messages,
struct GNUNET_IDENTITY_PrivateKey *sender)
{
GNUNET_assert (messages);
struct GNUNET_MESSENGER_QueueMessage *element = messages->head;
if (!element)
return NULL;
struct GNUNET_MESSENGER_Message *message = element->message;
GNUNET_CONTAINER_DLL_remove (messages->head, messages->tail, element);
if (sender)
GNUNET_memcpy (sender, &(element->sender), sizeof (*sender));
GNUNET_free (element);
return message;
}
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